Predicting wideband real-ear-to-coupler differences in children using wideband acoustic immittance.

Individual differences in ear-canal acoustics introduce variability into hearing aid output that can affect speech audibility. Measuring ear-canal acoustics in young children can be challenging, and relying on normative real-ear-to-coupler difference (RECD) transforms can lead to large fitting errors. Acoustic immittance measures characterize the impedance of the ear and are more easily measured than RECD.

Predicting children's real-ear-to-coupler differences based on tympanometric data.

Objective: Paediatric hearing-aid verification relies on measures of output obtained from the ear canal or in a coupler with the child's real-ear-to-coupler difference (RECD). Measured RECD cannot always be completed in children, leading to fitting inaccuracies. Audiologists often have tympanometry data that characterises the child's ear-canal acoustics.

Loss of high- or low-frequency audibility can partially explain effects of hearing loss on emotional responses to non-speech sounds.

Hearing loss can disrupt emotional responses to sound. However, the impact of stimulus modality (multisensory versus unisensory) on this disruption, and the underlying mechanisms responsible, are unclear. The purposes of this project were to evaluate the effects of stimulus modality and filtering on emotional responses to non-speech stimuli.

Clinician, student and faculty perspectives on the audiology-industry interface: implications for ethics education.

Supporting audiologists to work ethically with industry requires theory-building research. This study sought to answer: How do audiologists view their relationship with industry in terms of ethical implications? What do audiologists do when faced with ethical tensions? How do social and systemic structures influence these views and actions? A constructivist grounded theory study was conducted using semi-structured interviews of clinicians, students and faculty. A purposive sample of 19 Canadian and American audiologists was recruited with representation across clinical, academic, educational and industry work settings.

The effects of digital signal processing features on children's speech recognition and loudness perception.

Purpose: The purpose of this study was to determine the effects of hearing instruments set to Desired Sensation Level version 5 (DSL v5) hearing instrument prescription algorithm targets and equipped with directional microphones and digital noise reduction (DNR) on children's sentence recognition in noise performance and loudness perception in a classroom environment.

Method: Ten children (ages 8-17 years) with stable, congenital sensorineural hearing losses participated in the study. Participants were fitted bilaterally with behind-the-ear hearing instruments set to DSL v5 prescriptive targets.

Children's speech recognition and loudness perception with the Desired Sensation Level v5 Quiet and Noise prescriptions.

Purpose: To determine whether Desired Sensation Level (DSL) v5 Noise is a viable hearing instrument prescriptive algorithm for children, in comparison with DSL v5 Quiet. In particular, the authors compared children's performance on measures of consonant recognition in quiet, sentence recognition in noise, and loudness perception when fitted with DSL v5 Quiet and Noise.

Method: Eleven children (ages 8 to 17 years) with stable, congenital sensorineural hearing losses participated in the study.